struggle vs thrashing

struggle

noun
  • Strife, contention, great effort. 

  • A contortion of the body in an attempt to escape or to perform a difficult task. 

verb
  • To strive, to labour in difficulty, to fight (for or against), to contend. 

  • To strive, or to make efforts, with a twisting, or with contortions of the body. 

thrashing

noun
  • A heavy defeat. 

  • Threshing. (of cereal crop, etc) 

  • Action of the verb to thrash. 

  • Excessive paging within virtual storage. 

  • Slam dancing. 

  • A beating, especially a severe one. 

How often have the words struggle and thrashing occurred in a corpus of books? (source: Google Ngram Viewer )